2549565234 has 72 divisors (see below), whose sum is σ = 5763361968. Its totient is φ = 845844120.

The previous prime is 2549565229. The next prime is 2549565241. The reversal of 2549565234 is 4325659452.

2549565234 is a `hidden beast` number, since 2 + 54 + 9 + 565 + 2 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2549565234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4343089 + ... + 4343675.

It is an arithmetic number, because the mean of its divisors is an integer number (80046694).

Almost surely, 2^2549565234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549565234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2881680984).

2549565234 is an abundant number, since it is smaller than the sum of its proper divisors (3213796734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2549565234 is an frugal number, since it uses more digits than its factorization.

2549565234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 923 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 2549565234 is about 50493.2196834387. The cubic root of 2549565234 is about 1366.1195597001.

The spelling of 2549565234 in words is "two billion, five hundred forty-nine million, five hundred sixty-five thousand, two hundred thirty-four".